COMP Cams 4124-G-1 XD-A Adjustable Pushrod Top Section 7.140" OAL x 5/16" Dia. x .105" Wall

The COMP Cams 4124-G-1 is the top section replacement component for COMP Cams' XD-A (Xtreme Duty Adjustable) two-piece adjustable pushrod system. Designed for precision valvetrain tuning, this top section measures 7.140" overall length with a 5/16" (0.3125") outer diameter and a .105" wall thickness, providing a strong and rigid tube for demanding performance applications.

The XD-A system features a two-piece design where the top section slides inside a wider bottom section, with shims captured between the two halves to set the final overall pushrod length. This allows builders to fine-tune pushrod length to achieve ideal rocker arm geometry without committing to a fixed-length pushrod — a significant advantage during engine mock-up and custom builds.

Key Features:

• Top section for COMP Cams XD-A adjustable pushrod system
• 7.140" overall length
• 5/16" (0.3125") outer diameter
• .105" wall thickness for added rigidity and strength
• Compatible with COMP Cams XD-A pushrod shims (4124 series) for precise length adjustment
• Sold individually (single piece)
• Designed for use with COMP Cams XD-A bottom section and shim kit

Pair with the appropriate COMP Cams XD-A bottom section and shim kit to complete the assembly.